Zipper head assembly structure and sliding element thereof

ABSTRACT

A zipper head assembly structure and a sliding element thereof are provided. The zipper head assembly structure includes a sliding element, an elastic element and a pulling element. The sliding element includes a first sliding portion, two riveted portions disposed on the first sliding portion, and two stop portions respectively adjacent to the two riveted portions. The elastic element is disposed on the sliding element. The pulling element includes a pivot portion movably disposed on the first sliding portion and two abutting portions respectively connected to two opposite sides of the pivot portion. When the pulling element has been moved relative to the sliding element so as to make the pulling element substantially perpendicular to the first sliding portion, the two abutting portions of the pulling element respectively abut against the two stop portions, so that the pulling element is blocked by the two stop portions.

CROSS-REFERENCE TO RELATED PATENT APPLICATION

This application claims the benefit of priority to Taiwan Patent Application No. 109100938, filed on Jan. 10, 2020. The entire content of the above identified application is incorporated herein by reference.

Some references, which may include patents, patent applications and various publications, may be cited and discussed in the description of this disclosure. The citation and/or discussion of such references is provided merely to clarify the description of the present disclosure and is not an admission that any such reference is “prior art” to the disclosure described herein. All references cited and discussed in this specification are incorporated herein by reference in their entireties and to the same extent as if each reference was individually incorporated by reference.

FIELD OF THE DISCLOSURE

The present disclosure relates to an assembly structure and an element thereof, and more particularly to a zipper head assembly structure and a sliding element thereof.

BACKGROUND OF THE DISCLOSURE

Basic fastening components of common items of clothing are rarely anything other than buttons or zippers. Compared to buttons, the zipper structure has better usability and stronger structural characteristics. A common zipper structure includes a zipper head and a zipper tape that serve cooperatively as a guiding part for pulling and reciprocating movement of the zipper structure, so that the zipper structure has become more popular in clothing and accessories. However, zipper heads in the related art still have room for improvement.

SUMMARY OF THE DISCLOSURE

In response to the above-referenced technical inadequacies, the present disclosure provides a zipper head assembly structure and a sliding element thereof.

In one aspect, the present disclosure provides a zipper head assembly structure, including a sliding element, an elastic element and a pulling element. The sliding element includes a first sliding portion, a second sliding portion corresponding to the first sliding portion, a connection portion connected between the first sliding portion and the second sliding portion, two riveted portions disposed on the first sliding portion, and two stop portions respectively adjacent to the two riveted portions. The elastic element is disposed on the sliding element. The elastic element includes a retaining portion retained by the connection portion, a movable portion movably passing through the first sliding portion, and an elastic portion connected between the retaining portion and the movable portion. The pulling element includes a pivot portion movably disposed on the first sliding portion and two abutting portions respectively connected to two opposite sides of the pivot portion. The pivot portion includes two pivot sections respectively pivotally mated with the two riveted portions, and an abutting section connected between the two pivot sections. When the pulling element has not been moved relative to the sliding element yet and is substantially horizontally placed on the first sliding portion, the elastic portion of the elastic element downwardly abuts against the abutting section of the pivot portion of the pulling element. When the pulling element has been moved relative to the sliding element so as to make the pulling element substantially perpendicular to the first sliding portion, the abutting section of the pivot portion of the pulling element upwardly abuts against the elastic portion of the elastic element, and the two abutting portions of the pulling element respectively abut against the two stop portions, so that the pulling element is blocked by the two stop portions.

In another aspect, the present disclosure provides a zipper head assembly structure, including a sliding element, an elastic element and a pulling element. The sliding element includes a first sliding portion, two riveted portions disposed on the first sliding portion, and two stop portions respectively adjacent to the two riveted portions. The elastic element is disposed on the sliding element. The pulling element includes a pivot portion movably disposed on the first sliding portion and two abutting portions respectively connected to two opposite sides of the pivot portion. When the pulling element has been moved relative to the sliding element so as to make the pulling element substantially perpendicular to the first sliding portion, the two abutting portions of the pulling element respectively abut against the two stop portions, so that the pulling element is blocked by the two stop portions.

In yet another aspect, the present disclosure provides a sliding element, including a first sliding portion, a second sliding portion corresponding to the first sliding portion, a connection portion connected between the first sliding portion and the second sliding portion, two riveted portions disposed on the first sliding portion, and two stop portions respectively adjacent to the two riveted portions. When a pulling element has been moved relative to the sliding element so as to make the pulling element substantially perpendicular to the first sliding portion, the two abutting portions of the pulling element respectively abut against the two stop portions, so that the pulling element is blocked by the two stop portions.

Therefore, by virtue of “the sliding element including a first sliding portion, two riveted portions disposed on the first sliding portion, and two stop portions respectively adjacent to the two riveted portions” and “the pulling element including a pivot portion movably disposed on the first sliding portion and two abutting portions respectively connected to two opposite sides of the pivot portion”, when the pulling element has been moved relative to the sliding element so as to make the pulling element substantially perpendicular to the first sliding portion, the two abutting portions of the pulling element respectively abut against the two stop portions, so that the pulling element is blocked by the two stop portions.

Furthermore, by virtue of “the two riveted portions being disposed on the first sliding portion” and “the two stop portions being respectively adjacent to the two riveted portions”, when the pulling element has been moved relative to the sliding element so as to make the pulling element substantially perpendicular to the first sliding portion, the two abutting portions of the pulling element respectively abut against the two stop portions, so that the pulling element is blocked by the two stop portions.

These and other aspects of the present disclosure will become apparent from the following description of the embodiment taken in conjunction with the following drawings and their captions, although variations and modifications therein may be affected without departing from the spirit and scope of the novel concepts of the disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The present disclosure will become more fully understood from the following detailed description and accompanying drawings.

FIG. 1 is an exploded schematic view of a zipper head assembly structure according to a first embodiment of the present disclosure (when two riveted portions have not been riveted to each other yet).

FIG. 2 is an assembled schematic view of the zipper head assembly structure according to the first embodiment of the present disclosure (when the two riveted portions have been riveted to each other).

FIG. 3 is another exploded schematic view of the zipper head assembly structure according to a first embodiment of the present disclosure (when the two riveted portions have not been riveted to each other yet).

FIG. 4 is an assembled schematic view of the zipper head assembly structure according to the first embodiment of the present disclosure (when the two riveted portions have been riveted to each other).

FIG. 5 is a top schematic view of a sliding element according to the first embodiment of the present disclosure (when the two riveted portions have not been riveted to each other yet).

FIG. 6 is a lateral schematic view of the zipper head assembly structure according to the first embodiment of the present disclosure.

FIG. 7 is another lateral schematic view of the zipper head assembly structure according to the first embodiment of the present disclosure.

FIG. 8 is a partial cross-sectional schematic view of a pulling element that has not been moved relative to the sliding element yet and is substantially horizontally placed on a first sliding portion according to the first embodiment of the present disclosure, or is a partial cross-sectional schematic view taken along line VIII-VIII of FIG. 2.

FIG. 9 is a partial cross-sectional schematic view of the pulling element that has been moved relative to the sliding element so as to make the pulling element substantially perpendicular to the first sliding portion according to the first embodiment of the present disclosure.

FIG. 10 is a partial lateral schematic view of the pulling element that has been moved relative to the sliding element so as to make the pulling element substantially perpendicular to the first sliding portion according to the first embodiment of the present disclosure.

FIG. 11 is a top schematic view of a sliding element according to a second embodiment of the present disclosure (when two riveted portions have not been riveted to each other yet).

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure is more particularly described in the following examples that are intended as illustrative only since numerous modifications and variations therein will be apparent to those skilled in the art. Like numbers in the drawings indicate like components throughout the views. As used in the description herein and throughout the claims that follow, unless the context clearly dictates otherwise, the meaning of “a”, “an”, and “the” includes plural reference, and the meaning of “in” includes “in” and “on”. Titles or subtitles can be used herein for the convenience of a reader, which shall have no influence on the scope of the present disclosure.

The terms used herein generally have their ordinary meanings in the art. In the case of conflict, the present document, including any definitions given herein, will prevail. The same thing can be expressed in more than one way. Alternative language and synonyms can be used for any term(s) discussed herein, and no special significance is to be placed upon whether a term is elaborated or discussed herein. A recital of one or more synonyms does not exclude the use of other synonyms. The use of examples anywhere in this specification including examples of any terms is illustrative only, and in no way limits the scope and meaning of the present disclosure or of any exemplified term. Likewise, the present disclosure is not limited to various embodiments given herein. Numbering terms such as “first”, “second” or “third” can be used to describe various components, signals or the like, which are for distinguishing one component/signal from another one only, and are not intended to, nor should be construed to impose any substantive limitations on the components, signals or the like.

First Embodiment

Referring to FIG. 1 to FIG. 10, a first embodiment of the present disclosure provides a zipper head assembly structure Z, including a sliding element 1, an elastic element 2 and a pulling element 3.

Firstly, referring to FIG. 1 to FIG. 5, the sliding element 1 (or a zipper head) includes a first sliding portion 11, a second sliding portion 12 corresponding to the first sliding portion 11, a connection portion 13 connected between the first sliding portion 11 and the second sliding portion 12, two riveted portions 14 disposed on the first sliding portion 11, and two stop portions 15 respectively adjacent to the two riveted portions 14. For example, the first sliding portion 11 has a first end portion 111 suspended therefrom and a second end portion 112 opposite to the first end portion 111 of the first sliding portion 11, and the second sliding portion 12 has a first end portion 121 suspended therefrom and a second end portion 122 opposite to the first end portion 121 of the second sliding portion 12. In addition, the first end portion 111 of the first sliding portion 11 corresponds to the first end portion 121 of the second sliding portion 12, and the connection portion 13 is connected between the second end portion 112 of the first sliding portion 11 and the second end portion 122 of the second sliding portion 12. However, the aforementioned description for the sliding element 1 is merely an example and is not meant to limit the scope of the present disclosure.

Moreover, referring to FIG. 1 to FIG. 5, the elastic element 2 is disposed on the sliding element 1, and the elastic element 2 includes a retaining portion 21 retained by the connection portion 13, a movable portion 22 movably passing through the first sliding portion 11, and an elastic portion 23 connected between the retaining portion 21 and the movable portion 22. For example, the first sliding portion 11 has a through opening 110, the movable portion 22 of the elastic element 2 movably passes through the through opening 110 of the first sliding portion 11, and the two riveted portions 14 are respectively disposed beside two opposite sides of the through opening 110. However, the aforementioned description for the elastic element 2 is merely an example and is not meant to limit the scope of the present disclosure.

Furthermore, referring to FIG. 1 to FIG. 5, the pulling element 3 includes a pivot portion 31 movably disposed on the first sliding portion 11 and two abutting portions 32 respectively connected to two opposite sides of the pivot portion 31, and the pivot portion 31 includes two pivot sections 311 respectively pivotally mated with the two riveted portions 14, and an abutting section 312 connected between the two pivot sections 311. For example, the abutting section 312 has a concave region 3121 formed between the two pivot sections 311 and an abutting region 3122 outwardly extended from the concave region 3121. However, the aforementioned description for the pulling element 3 is merely an example and is not meant to limit the scope of the present disclosure.

More particularly, referring to FIG. 1, FIG. 3 and FIG. 6 to FIG. 8, when the pulling element 3 has not been moved relative to the sliding element 1 yet and is substantially horizontally placed on the first sliding portion 1, the elastic portion 23 of the elastic element 2 can downwardly abut against the abutting section 312 of the pivot portion 31 of the pulling element 3. That is to say, when the pulling element 3 has not been moved relative to the sliding element 1 yet and is substantially horizontally placed on the first sliding portion 11, the elastic portion 23 of the elastic element 2 can downwardly abut against the concave region 3121 of the abutting section 312, and the elastic portion 23 of the elastic element 2 can be partially received inside the concave region 3121 of the abutting section 312. In addition, referring to FIG. 9 and FIG. 10, when the pulling element 3 has been moved relative to the sliding element 1 so as to make the pulling element 3 substantially perpendicular to the first sliding portion 11 (that is to say, the pulling element 3 shown as a horizontal state can be changed into the pulling element 3 shown as a vertical state by pulling the pulling element 3 up), the abutting section 312 of the pivot portion 31 of the pulling element 3 can upwardly abut against the elastic portion 23 of the elastic element 2, and the two abutting portions 32 of the pulling element 3 can respectively abut against the two stop portions 15, so that the pulling element 3 is blocked or restricted by the two stop portions 15 and cannot be moved forwardly. In other words, when the pulling element 3 has been moved relative to the sliding element 1 so as to make the pulling element 3 substantially perpendicular to the first sliding portion 11, the abutting region 3122 of the abutting section 312 can upwardly abut against the elastic portion 23 of the elastic element 2, so that an end portion of the movable portion 22 can be received inside the through opening 110.

For example, referring to FIG. 1 to FIG. 5, one of the two riveted portions 14 includes two first bending sections 141 correspondingly disposed on the first sliding portion 11, and one of the two pivot sections 311 of the pivot portion 31 is partially covered or enclosed by the two first bending sections 141 so as to restrict the pulling element 3 and prevent the pulling element 3 from being separated from the sliding element 1 (that to say, the pulling element 3 does not escape from the sliding element 1). In addition, another one of the two riveted portions 14 includes two second bending sections 142 correspondingly disposed on the first sliding portion 11, and another one of the two pivot sections 311 of the pivot portion 31 is partially covered by the two second bending sections 142 so as to restrict the pulling element 3 and prevent the pulling element 3 from being separated from the sliding element 1 (that to say, the pulling element 3 does not escape from the sliding element 1). Therefore, by virtue of “the two first bending sections 141 of one of the two riveted portions 14 being mated with one of the two pivot sections 311 of the pivot portion 31” and “the two second bending sections 142 of another one of the two riveted portions 14 being mated with another one of the two pivot sections 311 of the pivot portion 31”, the pulling element 3 can be pivotally disposed on the first sliding portion 11. However, the aforementioned description for the riveted portion 14, the first bending section 141 and the second bending section 142 is merely an example and is not meant to limit the scope of the present disclosure.

It should be noted that one of the two stop portions 15 is tightly connected to one of the two first bending portions 141, and another one of the two stop portions 15 is tightly connected to one of the two second bending portions 142 as shown in FIG. 1, FIG. 3, and FIG. 5 to FIG. 7.

For example, referring to FIG. 1 and FIG. 3, the stop portion 15 has an inner curved surface 1501 and an outer curved surface 1502 opposite to the inner curved surface 1501, the first bending section 141 has a first inner curved surface 1411 and a first outer curved surface 1412 opposite to the first inner curved surface 1411, and the second bending section 142 has a second inner curved surface 1421 and a second outer curved surface 1422 opposite to the second inner curved surface 1421. In addition, a contour of the inner curved surface 1501 of one of the two stop portions 15 is substantially the same to and partially flush with a contour of the first inner curved surface 1411 of one of the two first bending sections 141, and a contour of the inner curved surface 1501 of another one of the two stop portions 15 is substantially the same to and partially flush with a contour of the second inner curved surface 1421 of one of the two second bending sections 142. Moreover, a contour of the outer curved surface 1502 of one of the two stop portions 15 is substantially the same to a contour of the first outer curved surface 1412 of one of the two first bending sections 141, and a contour of the outer curved surface 1502 of another one of the two stop portions 15 is substantially the same to a contour of the second outer curved surface 1422 of one of the two second bending sections 142. However, the aforementioned description for the stop portion 15, the first bending section 141 and the second bending section 142 is merely an example and is not meant to limit the scope of the present disclosure.

For example, referring to FIG. 6 and FIG. 7, a width W of a bottom side of the stop portion 15 is smaller than a width W1 of a bottom side of the first bending section 141 and a width W2 of a bottom side of the second bending section 142, and a height H of the stop portion 15 is smaller than a height H1 of the first bending section 141 and a height H2 of the second bending section 142. However, the aforementioned description for the stop portion 15, the first bending section 141 and the second bending section 142 is merely an example and is not meant to limit the scope of the present disclosure.

Second Embodiment

Referring to FIG. 11, a second embodiment of the present disclosure provides a zipper head assembly structure (not labeled) and a sliding element 1 thereof. Comparing FIG. 11 with FIG. 5, the difference between the second embodiment and the first embodiment is as follows: in the second embodiment, one of the two stop portions 15 is separate from and adjacent to one of the two first bending portions 141, and another one of the two stop portions 15 is separate from and adjacent to one of the two second bending portions 142. That is to say, one of the two stop portions 15 can be tightly connected to one of the two first bending portions 141 (such as in the first embodiment as shown in FIG. 5) or can be separated from and adjacent to one of the two first bending portions 141 (such as in the second embodiment as shown in FIG. 11), and another one of the two stop portions 15 can be tightly connected to one of the two second bending portions 142 (such as in the first embodiment as shown in FIG. 5) or can be separated from and adjacent to one of the two second bending portions 142 (such as in the second embodiment as shown in FIG. 11), according to different requirements.

In conclusion, by virtue of “the sliding element 1 including a first sliding portion 11, two riveted portions 14 disposed on the first sliding portion 11, and two stop portions 15 respectively adjacent to the two riveted portions 14” and “the pulling element 3 including a pivot portion 13 movably disposed on the first sliding portion 11 and two abutting portions 32 respectively connected to two opposite sides of the pivot portion 31”, when the pulling element 3 has been moved relative to the sliding element 1 so as to make the pulling element 3 substantially perpendicular to the first sliding portion 11, the two abutting portions 32 of the pulling element 3 respectively abut against the two stop portions 15, so that the pulling element 3 can be blocked or restricted by the two stop portions 15.

Furthermore, by virtue of “the two riveted portions 14 being disposed on the first sliding portion 11” and “the two stop portions 15 being respectively adjacent to the two riveted portions 14”, when the pulling element 3 has been moved relative to the sliding element 1 so as to make the pulling element 3 substantially perpendicular to the first sliding portion 11, the two abutting portions 32 of the pulling element 3 respectively abut against the two stop portions 15, so that the pulling element 3 can be blocked or restricted by the two stop portions 15.

The foregoing description of the exemplary embodiments of the disclosure has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching.

The embodiments were chosen and described in order to explain the principles of the disclosure and their practical application so as to enable others skilled in the art to utilize the disclosure and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those skilled in the art to which the present disclosure pertains without departing from its spirit and scope. 

What is claimed is:
 1. A zipper head assembly structure, comprising: a sliding element including a first sliding portion, a second sliding portion corresponding to the first sliding portion, a connection portion connected between the first sliding portion and the second sliding portion, two riveted portions disposed on the first sliding portion, and two stop portions respectively adjacent to the two riveted portions; an elastic element disposed on the sliding element, wherein the elastic element includes a retaining portion retained by the connection portion, a movable portion movably passing through the first sliding portion, and an elastic portion connected between the retaining portion and the movable portion; and a pulling element including a pivot portion movably disposed on the first sliding portion and two abutting portions respectively connected to two opposite sides of the pivot portion, wherein the pivot portion includes two pivot sections respectively pivotally mated with the two riveted portions, and an abutting section connected between the two pivot sections; wherein when the pulling element has not been moved relative to the sliding element and is substantially horizontally placed on the first sliding portion, the elastic portion of the elastic element downwardly abuts against the abutting section of the pivot portion of the pulling element; wherein when the pulling element has been moved relative to the sliding element so as to make the pulling element substantially perpendicular to the first sliding portion, the abutting section of the pivot portion of the pulling element upwardly abuts against the elastic portion of the elastic element, and the two abutting portions of the pulling element respectively abut against the two stop portions, so that the pulling element is blocked by the two stop portions.
 2. The zipper head assembly structure according to claim 1, wherein the first sliding portion has a first end portion suspended therefrom and a second end portion opposite to the first end portion of the first sliding portion, the second sliding portion has a first end portion suspended therefrom and a second end portion opposite to the first end portion of the second sliding portion, the first end portion of the first sliding portion corresponds to the first end portion of the second sliding portion, and the connection portion is connected between the second end portion of the first sliding portion and the second end portion of the second sliding portion; wherein the first sliding portion has a through opening, the movable portion of the elastic element movably passes through the through opening of the first sliding portion, and the two riveted portions are respectively disposed beside two opposite sides of the through opening; wherein the abutting section has a concave region formed between the two pivot sections and an abutting region outwardly extended from the concave region; wherein one of the two riveted portions includes two first bending sections correspondingly disposed on the first sliding portion, and one of the two pivot sections is covered by the two first bending sections so as to restrict the pulling element and prevent the pulling element from being separated from the sliding element; wherein another one of the two riveted portions includes two second bending sections correspondingly disposed on the first sliding portion, and another one of the two pivot sections is covered by the two second bending sections so as to restrict the pulling element and prevent the pulling element from being separated from the sliding element; wherein when the pulling element has not been moved relative to the sliding element and is substantially horizontally placed on the first sliding portion, the elastic portion of the elastic element downwardly abuts against the concave region of the abutting section; wherein when the pulling element has been moved relative to the sliding element so as to make the pulling element substantially perpendicular to the first sliding portion, the abutting region of the abutting section upwardly abuts against the elastic portion of the elastic element.
 3. The zipper head assembly structure according to claim 1, wherein one of the two riveted portions includes two first bending sections correspondingly disposed on the first sliding portion, and another one of the two riveted portions includes two second bending sections correspondingly disposed on the first sliding portion; wherein one of the two stop portions is connected to one of the two first bending portions, and another one of the two stop portions is connected to one of the two second bending portions; wherein a width of a bottom side of the stop portion is smaller than a width of a bottom side of the first bending section and a width of a bottom side of the second bending section, and a height of the stop portion is smaller than a height of the first bending section and a height of the second bending section; wherein the stop portion has an inner curved surface and an outer curved surface opposite to the inner curved surface, the first bending section has a first inner curved surface and a first outer curved surface opposite to the first inner curved surface, and the second bending section has a second inner curved surface and a second outer curved surface opposite to the second inner curved surface; wherein a contour of the inner curved surface of one of the two stop portions is substantially the same to and partially flush with a contour of the first inner curved surface of one of the two first bending sections, and a contour of the inner curved surface of another one of the two stop portions is substantially the same to and partially flush with a contour of the second inner curved surface of one of the two second bending sections; wherein a contour of the outer curved surface of one of the two stop portions is substantially the same to a contour of the first outer curved surface of one of the two first bending sections, and a contour of the outer curved surface of another one of the two stop portions is substantially the same to a contour of the second outer curved surface of one of the two second bending sections.
 4. The zipper head assembly structure according to claim 1, wherein one of the two riveted portions includes two first bending sections correspondingly disposed on the first sliding portion, and another one of the two riveted portions includes two second bending sections correspondingly disposed on the first sliding portion; wherein one of the two stop portions is separate from and adjacent to one of the two first bending portions, and another one of the two stop portions is separate from and adjacent to one of the two second bending portions; wherein a width of a bottom side of the stop portion is smaller than a width of a bottom side of the first bending section and a width of a bottom side of the second bending section, and a height of the stop portion is smaller than a height of the first bending section and a height of the second bending section; wherein the stop portion has an inner curved surface and an outer curved surface opposite to the inner curved surface, the first bending section has a first inner curved surface and a first outer curved surface opposite to the first inner curved surface, and the second bending section has a second inner curved surface and a second outer curved surface opposite to the second inner curved surface; wherein a contour of the inner curved surface of one of the two stop portions is substantially the same to and partially flush with a contour of the first inner curved surface of one of the two first bending sections, and a contour of the inner curved surface of another one of the two stop portions is substantially the same to and partially flush with a contour of the second inner curved surface of one of the two second bending sections; wherein a contour of the outer curved surface of one of the two stop portions is substantially the same to a contour of the first outer curved surface of one of the two first bending sections, and a contour of the outer curved surface of another one of the two stop portions is substantially the same to a contour of the second outer curved surface of one of the two second bending sections.
 5. A zipper head assembly structure, comprising: a sliding element including a first sliding portion, two riveted portions disposed on the first sliding portion, and two stop portions respectively adjacent to the two riveted portions; an elastic element disposed on the sliding element; and a pulling element including a pivot portion movably disposed on the first sliding portion and two abutting portions respectively connected to two opposite sides of the pivot portion; wherein when the pulling element has been moved relative to the sliding element so as to make the pulling element substantially perpendicular to the first sliding portion, the two abutting portions of the pulling element respectively abut against the two stop portions, so that the pulling element is blocked by the two stop portions.
 6. The zipper head assembly structure according to claim 5, wherein one of the two riveted portions includes two first bending sections correspondingly disposed on the first sliding portion, and another one of the two riveted portions includes two second bending sections correspondingly disposed on the first sliding portion; wherein one of the two stop portions is connected to one of the two first bending portions, and another one of the two stop portions is connected to one of the two second bending portions; wherein a width of a bottom side of the stop portion is smaller than a width of a bottom side of the first bending section and a width of a bottom side of the second bending section, and a height of the stop portion is smaller than a height of the first bending section and a height of the second bending section; wherein the stop portion has an inner curved surface and an outer curved surface opposite to the inner curved surface, the first bending section has a first inner curved surface and a first outer curved surface opposite to the first inner curved surface, and the second bending section has a second inner curved surface and a second outer curved surface opposite to the second inner curved surface; wherein a contour of the inner curved surface of one of the two stop portions is substantially the same to and partially flush with a contour of the first inner curved surface of one of the two first bending sections, and a contour of the inner curved surface of another one of the two stop portions is substantially the same to and partially flush with a contour of the second inner curved surface of one of the two second bending sections; wherein a contour of the outer curved surface of one of the two stop portions is substantially the same to a contour of the first outer curved surface of one of the two first bending sections, and a contour of the outer curved surface of another one of the two stop portions is substantially the same to a contour of the second outer curved surface of one of the two second bending sections.
 7. The zipper head assembly structure according to claim 5, wherein one of the two riveted portions includes two first bending sections correspondingly disposed on the first sliding portion, and another one of the two riveted portions includes two second bending sections correspondingly disposed on the first sliding portion; wherein one of the two stop portions is separate from and adjacent to one of the two first bending portions, and another one of the two stop portions is separate from and adjacent to one of the two second bending portions; wherein a width of a bottom side of the stop portion is smaller than a width of a bottom side of the first bending section and a width of a bottom side of the second bending section, and a height of the stop portion is smaller than a height of the first bending section and a height of the second bending section; wherein the stop portion has an inner curved surface and an outer curved surface opposite to the inner curved surface, the first bending section has a first inner curved surface and a first outer curved surface opposite to the first inner curved surface, and the second bending section has a second inner curved surface and a second outer curved surface opposite to the second inner curved surface; wherein a contour of the inner curved surface of one of the two stop portions is substantially the same to and partially flush with a contour of the first inner curved surface of one of the two first bending sections, and a contour of the inner curved surface of another one of the two stop portions is substantially the same to and partially flush with a contour of the second inner curved surface of one of the two second bending sections; wherein a contour of the outer curved surface of one of the two stop portions is substantially the same to a contour of the first outer curved surface of one of the two first bending sections, and a contour of the outer curved surface of another one of the two stop portions is substantially the same to a contour of the second outer curved surface of one of the two second bending sections.
 8. A sliding element, comprising: a first sliding portion; a second sliding portion corresponding to the first sliding portion; a connection portion connected between the first sliding portion and the second sliding portion; two riveted portions disposed on the first sliding portion; and two stop portions respectively adjacent to the two riveted portions; wherein when a pulling element has been moved relative to the sliding element so as to make the pulling element substantially perpendicular to the first sliding portion, the two abutting portions of the pulling element respectively abut against the two stop portions, so that the pulling element is blocked by the two stop portions.
 9. The sliding element according to claim 8, wherein one of the two riveted portions includes two first bending sections correspondingly disposed on the first sliding portion, and another one of the two riveted portions includes two second bending sections correspondingly disposed on the first sliding portion; wherein one of the two stop portions is connected to one of the two first bending portions, and another one of the two stop portions is connected to one of the two second bending portions.
 10. The sliding element according to claim 8, wherein one of the two riveted portions includes two first bending sections correspondingly disposed on the first sliding portion, and another one of the two riveted portions includes two second bending sections correspondingly disposed on the first sliding portion; wherein one of the two stop portions is separate from and adjacent to one of the two first bending portions, and another one of the two stop portions is separate from and adjacent to one of the two second bending portions. 